Carlos Rosario Wall is a near-vertical wall formation located 400 metres from shore near Culebrita. The site features a reef and wall topography with depths ranging from 4 to 15 metres, averaging 10 metres. Conditions are generally mild, though divers should remain aware of boat traffic, sharp coral, and potential currents. As part of the protected Luis Pena Marine Reserve, all fishing and taking of marine life is strictly prohibited. This site is suitable for beginners and supports night diving. Access is by boat only, with visibility consistently recorded at 16 metres.

Punta Tamarindo Grande, located off Culebrita, features a combination of reef and wall topography. The site is suitable for beginners, with average depths ranging from 9 to 12 metres. Divers can expect moderate currents and visibility between 5 and 10 metres. Marine life recorded at the site includes purple sea fans, wrasses, and sea bass. Other species observed include stoplight parrotfish, foureye butterflyfish, fairy basslet, redband parrotfish, groupers, Pacific trumpetfish, queen parrotfish, blue tang, Caribbean spiny lobster, sergeants, and soldierfish. Access is by boat only, located 2000 metres from shore. Divers should exercise caution regarding sharp rocks and coral while navigating the underwater terrain.

Chutes and Ladders is a drift reef dive located off Culebrita, Puerto Rico. The site features a reef structure with depths ranging from 12 to 24 metres, averaging 12 metres. Divers can expect moderate currents, which facilitate a drift dive experience. Visibility at the site typically spans 12 to 30 metres. Access is by boat only, and the site is suitable for beginners, though comfort in current is required. Guided tours and equipment rental are available for those visiting the area. The site is also open for night diving, with typical dive times around 50 minutes. Divers should remain close to their guide and descend promptly at the anchor line.

The Arch at Culebrita is a reef and cave site defined by a large overhang and swimthrough located at a depth of approximately 6 metres. The site reaches a maximum depth of 15 metres, with an average depth of 10 metres. Divers can explore the structure, which features coral and sponge growth on the ceiling. Historical debris is present, including several 5-inch naval artillery rounds, a 16-inch battleship round, and an airplane turbine. Access is by boat only, located 1609 metres from shore. Conditions include mild currents and visibility ranging from 10 to 30 metres. Hazards include sharp coral and surge. The site is suitable for beginners.

Cayo del Agua, located off Culebrita, features a combination of natural reef and artificial reef structures. This site is suitable for beginners, with depths ranging from 9 to 20 metres and an average depth of 15 metres. Visibility typically spans 15 to 30 metres, assisting with orientation. Access is by boat only, with the site situated 1000 metres from shore. While currents are generally mild, they can become strong, and divers should remain vigilant for boat traffic during ascents. Night diving is available at this location. Water temperatures remain between 27 and 30 degrees Celsius throughout the year.

Cayo Lobo is a marine cave site located off Culebra Island, Puerto Rico, characterised by sloping terrain and large boulders. This site is strictly for advanced divers due to the presence of strong currents. Access is by boat only. The site reaches depths of up to 14 metres, with visibility ranging from 1 to 18 metres. Water temperatures remain warm throughout the year, fluctuating between 27C and 30C. Divers should be prepared for challenging conditions and ensure they have the necessary experience to manage the currents encountered at this location.

The Ledges is a shallow reef located off Culebrita, Puerto Rico, featuring a depth range of 2 to 11 metres with an average of 8 metres. This site is accessible only by boat and is suitable for beginner divers due to the mild currents. Visibility at the site typically ranges from 15 to 40 metres. Water temperatures remain between 27 and 30 degrees Celsius throughout the year. Divers should maintain good buoyancy control to avoid contact with sea urchins, which are present on the reef. Typical dives at this location last approximately 45 minutes.

Arch Dive is a shallow reef site located off Culebrita, Puerto Rico, offering depths of 1 to 2 metres. This site is well-suited for beginners, providing a relaxed environment with mild currents and visibility ranging from 10 to 30 metres. Access is exclusively by boat. The water temperature remains warm throughout the year, fluctuating between 27 and 30 degrees Celsius, which allows for comfortable diving in a thin wetsuit or rash guard. The minimal depth and consistent conditions make this an accessible location for those looking to build underwater confidence in a calm, shallow reef setting.